Machine for cutting, beveling, splitting, and grooving leather.



G. HILDEBRANDT. MACHINE FOR CUTTING, BEVELING, SPLITTING, AND GROOVINGLEATHER.

APPLICATION FILED JULY 2, 1908.

Patented Nov. 16, 1909.

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CARL HILDEBRANDT, OF DUSSELDORF, GERMANY.

MACHINE FOR CUTTING, BEVELING, SPLITTING, AND GROOVING LEATHER.

Specification of Letters Patent.

Patented Nov. 16, 1909.

Application filed July 2, 1908. Serial No. 441,711.

To all whom it may concern:

Be it known that I, CARL HILDEBRANDT, a subject of the German Empire,merchant, at present residing at 67 Schadowstrasse, Dusseldorf, in theKingdom of Prussia, Germany, have invented a new and useful Machine forCut-ting, Beveling, Splitting, and Grooving Leather, of which thefollowing is a complete and full specification.

This invention relates to a machine of novel construction and adaptedfor cutting, paring and splitting leather used in the manufacture ofshoes.

On the accompanying drawing several modes of construction of theinvention are shown.

Figure 1 shows a mode of construction of the contrivance in frontelevation, it being used in conjunction with a leather rolling machinewhich is only partly represented. Fig. 2 shows a further mode ofconstructing the contrivance, in which the driving is performed by meansof a crank. Fig. 3 represents a detail of the contrivance in somewhatlarger scale, while Figs. 4-8 show the different positions for working,which are attained by setting and interchanging the individual tools.

In the case of the mode of construction shown in Fig. 1, carrier-wheelsc are fixed in suitable manner on the shafts a of the leather rollers b.

If it is required to employ the contrivance for cutting leather intostrips or for cutting out soles, one of the carrier wheels is replacedby a circular knife, as shown in Fig. 2.

On the frame (i there is affixed above shafts a an arm 6 that extendsbeyond the shafts and on which there is a holder h intended for a knife9, which can be moved backward and forward and which is retained inposition by a nut f. The carrier 2' of the knife g, which forms the lips (Fig. 4) or pares the tip t (Fig. 5) or splits the leather u (Fig. 6),is adjustable upward or downward on the holder h. The adjustment iseffected by means of the screw is.

It is preferable to so set the knife 9 that the point is somewhatinclined to the shafts or axes a; of the carrier wheels 0. As may beseen from Fig. 3, the carrier 2' consists of two parts, of which thelower 71' is furnished with a plug Z, and the upper part i with anopening into which the plug on the lower portion engages. The under part2" may, in

consequence, be turned along with the knife. The wing nut 12 serves tosecure the lower part 2" in position after being adjusted. The carrier2' could also, as shown in Fig. 3 be made adjustable. The part 2" isthen suitably forked and serves for the reception of the part 2'carrying the knife 9, the part 2' being retained by the screw i so thatthe point of the knife is more or less inclined, as is required inmaking the lip.

For splitting the leather (Fig. 7) the knife 2: is provided which isaffixed to an adj ustable slide 0. The latter is carried by an arm 7"which is located between shafts a and is adjustable on the frame d bythe screw g which passes through a slot, so that the arm 1* carrying theknife 0 can on loosening the screw be set to cut the leather shallow ordeep as the case requires. The arm 1' or the lznilfe 1; may also beadjusted perpendicu- Fbr forming the groove w for the doubling in of thesole the knife o is replaced by another knife to having an upturned edgeOTle o r both of the shafts or axes a is adjustable so that they andconsequently also the carrier wheels on their ends may be adjusted tosuit the thickness of the leather in work.

In the case of the construction shown in Fig. l the arrangement is suchthat carrier wheels can be set simultaneously with the roller adjustingappliance whereby both shafts a are brought into engagement with therollers b. The upper shaft a may also as shown in Fig. 2 be independentand movable with its bearings as in the case of Fig. l, and the raisingand lowering is then performed by a traverse m screw m and hand wheel mThe leather which is fed in between the carrier wheels 0 runs with itthrough edge j against the guide roller .2 which guides it so that thecut is of uniform depth. The guide roller 2 runs in the arm y whichalong with the roller can be brought by means of a suitable adjustingappliance to a suitable distance from the carrier wheels 0 so that thedistance from the edge of the leather to the knife can be regulated.

Having now fully described my invention what I claim as new and desireto secure by Letters Patent is A device of the character described,comlower rotatable section having a pin engag- Signed by me atDusseldorf this twentieth ing said socket, means for lockiiigltlhe lowerday of June 1908.

section to the upper section, a 10 cer, a set T screw that adjustablysecures the upper car- P HILDEBRAB rier-section to the holder, an armslidably supporting the holder, and means for locking the holder to saidarm.

Witnesses:

PETER LIEBER, WILHELM F LASCHE.

